Printed and laminated film reels are loaded, tensioned and registered on the converting line, confirming print-to-cut registration and web alignment before the run starts.
Capabilities · Bag Converting
Bag Converting for Six Flexible Packaging Formats.
In-house high-speed bag converting for flexible packaging — stand up pouches, zipper bags, flat bottom bags, euro bottom bags, side gusset bags and sample sachets, FOB Xiamen.
1,750mm
Web Width
6
Bag Formats
High
Speed Lines
PROCESS · CONVERT-01
UP TO 1,750 mm WEB
High-Speed Bag Converting · 6 Formats
01 — Overview
Bag converting is the process of transforming printed and laminated flexible film into finished bags. Tansox runs bag converting in-house at Quanzhou, producing six bag formats on high-speed converting lines directly from the laminated and printed film produced upstream at the same facility. All converting lines are set up for rapid format changeover, and quality is inspected at each stage on-line before bags are counted, packed and palletised for shipment.
02 — How It Works
Four stages, one high-speed converting run.
From laminated film reel to finished, counted bag — every order runs through the same four-stage converting workflow at Quanzhou.
The film is shaped to the target bag format by folding and gusseting tooling, then heat-sealed at the bottom, sides and — where applicable — gusset panels. Zipper profiles are inserted and sealed in-line.
The formed web is cut to the finished bag length. Notches, hole punches, hanging holes and tear notches are applied in-line at this stage per specification.
Finished bags are counted, stacked and packed into shipping cartons. Vision inspection is applied at the counter for seal integrity, print registration and overall cosmetic quality.
03 — Technical Specifications
The bag converting manufacturing window.
The table below covers our standard bag converting production window. Share your format, dimensions and feature list and we'll confirm feasibility.
Format Diagram
REF · DWG-CONVERT-2026
- Web WidthUp to 1,750 mm across converting lines. Finished bag width confirmed per format and tooling.
- Bag FormatsStand Up PouchZipper BagFlat Bottom BagEuro Bottom BagSide Gusset BagSample Sachet
- ClosuresPress-to-Close ZipperTear NotchHanging Hole
- Print-to-CutRegistration tolerance confirmed per format. Eye-mark controlled on all high-speed lines.
- Seal TestingHeat seal integrity tested per production lot — burst test and vacuum leak test as applicable.
- Minimum OrderConfirm with sales — varies by format and structure. Typically 10,000 units minimum.
04 — What We Produce
Six bag formats from our converting lines.
05 — Markets We Serve
Hygiene, personal care & medical categories we pack for.
Tansox bag converting capabilities ship globally for category leaders across these markets. Each market has its own page with material recommendations and product specs.
06 — Quality & Certifications
Seal integrity checked on every bag, every run.
Five quality checkpoints applied to every bag converting order:
- Seal IntegrityBurst and vacuum leak testing applied per production lot. Failed bags flagged and quarantined before packing.
- Vision InspectionIn-line vision camera for print registration, seal position and cosmetic quality on high-speed lines.
- Dimensional CheckBag dimensions and feature positions checked against approved artwork and engineering drawings at start of run and each reel change.
- CertificationISO 9001 & ISO 14001 Certified — issued by EACC. ISO 9001 valid to 2029, ISO 14001 valid to 2028.
- Packing AccuracyFinished bag counts verified at packing. Carton labels include lot number, quantity, format code and production date for full traceability.
07 — Why Tansox
Half a century of converting, one factory floor.
50 Years Manufacturing Experience
Established ~1976 in Quanzhou, Fujian. Long-run experience across six bag formats for global hygiene and wipes brands.
ISO 9001 & ISO 14001 Certified
Tansox operates ISO 9001:2015 and ISO 14001:2015 certified management systems, issued by EACC and accredited by CNAS under the IAF Multilateral Recognition Arrangement. Seal integrity documentation, COA and lot traceability on every converting order.
In-House End-to-End Production
Printing, lamination, bag converting and slitting all under one roof in Quanzhou. No outsourced processes, no inter-factory handling.
08 — Frequently Asked
Questions buyers ask before quote.
Tansox converts six bag formats in-house: Stand Up Pouches (with or without zipper), Zipper Bags, Flat Bottom Bags, Euro Bottom Bags, Side Gusset Bags and Sample Sachets. All formats are available from the same Quanzhou facility, converted from Tansox-produced printed and laminated film.
Standard closure options include press-to-close zipper (available in multiple profile widths), tear notches, hanging holes and laser score tear lines. Confirm your closure requirements with our sales team at the time of quote.
Minimum order quantities typically start from 10,000 units per format and SKU, depending on bag dimensions and structure. Higher-complexity formats such as Euro Bottom and Flat Bottom Bags may have higher minimums. Contact our sales team for a format-specific MOQ confirmation.
